| Dance Name | From | Other information available via specific page |
| O Fortuna | ||
| O Granka Granka | Bulgaria | performer(s); source of music; |
| O Granka Granka | performer(s); source of music; | |
| O Nkosi Jesu | South Africa | pronounciation; subjective view; performer(s); source of music; |
| O Nkosi Jesu | pronounciation; subjective view; performer(s); source of music; | |
| O Postari | theme/style; performer(s); source of music; | |
| O Tarzan | subjective view; | |
| Oberek | Poland | comment; |
| Oberek Opoczynski | Poland | comment; |
| Oberek Zvicainy | Poland | comment; |
| Ocarina | Romania | performer(s); source of music; |
| Ocarina du Poitou | Rosey Fagg | performer(s); source of music; |
| O'Carolan's Lullaby | Rosey Fagg | |
| Od Lo Ahavti Dai | translation; subjective view; performer(s); source of music; | |
| Od Lo Ahavti Dai | Israel | source of music; |
| Od Yishama | Israel | |
| Odeno Oro | Macedonia | translation; subjective view; performer(s); source of music; |
| Odeno Oro | Macedonia | performer(s); source of music; |
| Odeno Oro | Macedonia | translation; subjective view; performer(s); source of music; |
| Odhopsko Oro | ||
| Odysseus | source of music; | |
| Oee Naze | Armenia-Turkey | |
| Ograzdensko Horo | Bulgaria | |
| Oguzlu | comment; | |
| Ohjaa Meita | Nanni Kloke | alternative name; performer(s); source of music; |
| Oi Dai | Jenny Deupree | comment; |
| Oige ja Vasemba | comment; | |
| Oj Dada Sale | performer(s); source of music; | |
| Oj Ivane Invnicu/Dere/Jasi Baba Dotata/Nebesko | Croatia | source of music; |
| Oj Jelo Jelena | Serbia | source of music; |
| Oj Le Sino | Bulgaria | performer(s); |
| Oj Lopnuv Obruch | Ukraine:Donbas | performer(s); source of music; |
| Oj Svetjot Kalina | Russia | performer(s); source of music; |
| Oj Ti Bela Zora | Croatia | performer(s); source of music; |
| Oj Ti Pile | Macedonia | |
| Okarina Kolo | Serbia | performer(s); source of music; |
| Old Jack | Colin Harrison | performer(s); source of music; |
| Old Man at the Mill | ||
| Old Woman | Canada | subjective view; performer(s); source of music; |
| Olive | ||
| Om Mani Padme Hum | Anne-Lise Kryger | performer(s); source of music; |
| Om Namaha Shiva | Jan Mulreany | comment; |
| Omal | Greece:Pontos | |
| Omal Garassari | Greece:Pontos | comment; subjective view; performer(s); source of music; |
| Omal Garassari | Greece:Pontos | comment; subjective view; performer(s); source of music; |
| Omal Kars | Greece | |
| Omal Karsilidikon | Greece:Pontos | comment; |
| Omal Kerasoundas | Greece | |
| Omal Kirsilidikov | Greece | |
| Omal Mektup | Greece:Pontic | |
| Omrim Yeshna Eretz | Israel | |
| One Day the Heavens will Sing | Nanni Kloke | performer(s); source of music; |
| One Love | subjective view; | |
| One Love, One Heart | comment; another site; | |
| One World | comment; another site; | |
| Oneg Shabbat | Israel | performer(s); source of music; |
| Onga | Romania | translation; alternative name; theme/style; |
| Ooska Gookas | alternative name; performer(s); source of music; | |
| Opa Ni Nanai | performer(s); source of music; | |
| Opa Tsupa | Andy Bettis | subjective view; performer(s); source of music; |
| Opas | Bulgaria | |
| Open My Eyes | ||
| Open Your Heart | Colin Harrison | performer(s); source of music; |
| Opening in Sweet Surrender | comment; another site; | |
| Ophelia | ||
| Opsaj Diri | Croatia | comment; |
| Opucuk | ||
| Ora Ora | Yannis Markopoulos | comment; |
| Ordinary Magic | ||
| Orea | ||
| Orfano | Greece:Pontos | performer(s); source of music; |
| Orijent | Serbia | comment; |
| Orion's Dance | Rosey Fagg | |
| Orlovskaya | Russia | translation; theme/style; comment; |
| Ormanli/Ajdarovo Horo | Bulgaria | |
| Oro Se Vie | Macedonia | subjective view; performer(s); source of music; |
| Oromnia | Romania:Muntenia | source of music; |
| Osagovska Oro | Thrace:Western | performer(s); source of music; |
| Oseredchuk | performer(s); source of music; | |
| Osogovka | Yugoslavia | |
| Osogovka/Kumanovsko Oro | Macedonia | performer(s); source of music; |
| Ostende Dom | ||
| Ounous | Armenia:Vaspurakan | |
| Out of the Ashes | performer(s); source of music; | |
| Outflowing Tide | Bob Minney | performer(s); source of music; |
| Ouzoundara | Armenia | |
| Ovcepolska | Macedonia | pronounciation; |
| Ovchata | Bulgaria:Thrace | translation; comment; |
| Oxo | performer(s); source of music; | |
| Oxygene | comment; another site; |